Built an SD imaged with deb_stretch_4.14.13_SD.img
Booted fine
Used console to move RootFS to SSD and setup basic networking
Deployed a new kernel (4.14.71 - deployed new uImage and files to /lib/modules)
Rebooted and came up fine.
Updated (apt-et updat, upgrade, dist-upgrade)
Installed ufw and added OpenSSH to rules
On entering ufw enable I get:
root@bpi-r2:/# ufw enable
Command may disrupt existing ssh connections. Proceed with operation (y|n)? y
ERROR: problem running ufw-init
modprobe: FATAL: Module nf_conntrack_netbios_ns not found in directory /lib/modules/4.14.71-bpi-r2-main
iptables-restore: line 38 failed
ip6tables-restore: line 138 failed
ip6tables-restore: line 38 failed
Problem running '/etc/ufw/user.rules'
Problem running '/etc/ufw/before6.rules'
Problem running '/etc/ufw/user6.rules'
But I get other error with ufw, not got time to further look at this so have uninstalled ufw for now and will use iptables direct.
root@bpi-r2:/etc# ufw enable
Command may disrupt existing ssh connections. Proceed with operation (y|n)? y
ERROR: problem running ufw-init
ip6tables-restore: line 138 failed
Problem running '/etc/ufw/before6.rules'